Mandatory

• Type: The value must be a Information Entity.

  The other role in the association between two Information Entities.

• Aggregation: The value must be 'composite'.

  The aggregation should be a Composite

Rules

• Multiplicity: The value shall be non-empty.

  An distinct number or an interval between two numbers indicating how many instances of the associated information entity that participate in the relation from the current Information Entity´s perspective.

  The value * indicates that any number of participants are allowed.

• Visibility: The value shall be 'public'.

  The visibility must be public

• Navigable: The value shall be 'true'.

  Indicates if the association is navigable.

Recommendations

• Name: The value can be anything.

  The name should indicate what kind of role the associated Information Entity plays towards the current Information Entity.

• Documentation: The value can be anything.

  A short description of what the role represents from the current Information Entity´s perspective.

Information Entity (Class)

Information Entity (Class)

Ownership (Association)

• Can be the value of the Opposite property of Owner Role (Association End)